Dwell / Duty Cycle Q.

[hareless at gmail.com (Sean Whalen)]

Yes, yes, and yes.  They're all dependent on each other.  A new o-ring will
make a world of difference.  Air can be your enemy.

On 5/10/07, Camron D. Crouse <camron@xxxxxxxxxxxxxxxxxx> wrote:
>
> Forgot to add:  Checking the duty cycle of the *Idle Stabilizer
> Valve*... just to clarify.
>
> New info:  checked with hoses in place, the lowest value I could obtain
> (via adjustment of the idle air bypass screw only, leaving the A/F screw
>   in the fuel dist. alone) was 66%, Bentley target is 26-30%. Red probe
> on grey/white wire, black to ground.  I actually turned the idle air
> bypass screw quite a few turns, and quite easily with my bare hands...
> must need a new o-ring there? It is currently at full clockwise.
>
> Do I need to go back and readjust the the A/F screw on the fuel dist,
> then check duty cycle again? Are these two adjustments interactive?  And
> if I adjust the ignition distributor timing, do I start over?
>
> Thanks!
>
> - Camron from Vancouver, WA USA
>    '86.5 Black 16V 2.0L
>
> *********
> Camron D. Crouse wrote:
> > Checking duty cycle values for 2.0 16V Scirocco w/CIS-E +TT fuel
> > enrichment module.  DPR current successfully set while at full running
> > temp, 10mA +/- 1mA with a brand new auto-ranging multimeter.
> >
> > Trying to accurately check duty cycle.  Bentley describes disconnecting
> > crankcase ventilation hoses, but the illustration seems to depict a
> > fuel-distributor-on-passenger-side setup, and the hoses don't quite
> > correspond so I am unclear on which crankcase hoses I actually
> > disconnect and at which points (Bentley illustration shows a ventilation
> > hose with a nippled T in it, but I have no such T).  In addition, the L
> > nipple to the intake boot does not fit snug while in the test position.
> >
> > Do you folk make this check with hoses disconnected or in running
> position?
> >
> > BTW I am going through DEQ tomorrow so that I can bring my registration
> > up to date.  Tuning for passing E-check, so stock settings wanted...
> >
> > TIA!
> >
> > - Camron from Vancouver, WA USA
> >   '86.5 Black 16V 2.0L
> >
> >
> > _______________________________________________
> > Scirocco-l mailing list
> > Scirocco-l@xxxxxxxxxxxx
> > http://neubayern.net/mailman/listinfo/scirocco-l
> >
>
>
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>



-- 
Sean
A-1 x 2